Radiator for motor-cars.



H. W. STOCK.`

RADITOR FOR MOTOR CARS. APPLICATION 'HLED- MAY 29. 1912*.

Ltg Pmed Sept. 21, 1915.

fig@ bg NVWBWSod/ M 5,7%, Q Jqlly Cgi HENRY W. STOCK, OE ERIE,PENNSYLVANIA, ASSIGNOR TO GENERAL ELECTRIC COMPANY, A CORPORATION OF NEWYORK.

enmarca` ron Moron-cans.

rasante.

To all whom t may concern.'

Y Be it known that l, HENRY NV. STOCK, a

be directly or indirectly connected to vthe axles of the trucks., Suchan'arrangement requires a radiator of relatively large area to dissipatethe heat transferred to the circulating water through the walls of thecylinders, valve casings, etc. In order to obtain the best-coolingeffects 'thediaton its headers, jackets, piping, etc., should besubstantially filled with water or other cooling liquid.

In carrying out my invention, a radiator is provided comprisingaplurality of tubes which are connected to headers and the wholestructure is mounted on the roof of the vehicle where it is subjected tothe cooleffects of air currents, particularly when ing the vehicle -isin motion. l have found 1n the practical operation of such apparatusthat when the vehicle is stopped suddenly and to a lesser extent when itis so started, that the water in the headers surges back and forth,often spilling out of the overflow resulting in waste wliichisdetrimental to good operation, is wasteful and alsotends to disigurc theappearance of the vehicle by reason of the water running down the sidesof the vehicle over the window, etc. l have also discovered that attimes when the engine is running at too high a temperature, usually dueto unskilled operation, steam will be formed` in the engine jacketswhich blows water out of them and causes a discharge at the overiiow. lhave also found that when the vehicle is traveling on steep grades thatthe water will sometimes collect in one end of the radiator causing afictitious level at that point with a resulting overflow at the outlet.To avoid t rese objections l provide what for convenience may be termedan overflow tank or receptacle which, as an additional' function, mayserve to Specification of Letters(PatentA Application filed May 29,1912.I SerialNo. 700,407'.

`an electric generator and motors.

Patented sept, 2i, aars.

equalize the level of the water in the right and left-hand sections ofthe radiator. This tank may be of any suitable size but it should' be atleast equal to the cubical contents ofthe cylinder and Valve jackets ofthe engine so that ifl they discharge the water contained therein due tothe momentary formationof steam, it can all be received in said tank andlater flow back to the radiator. The tank should be so arranged that theentrance of water into it is battled or retarded to a certain degree soas to limit the effects of surging to a greater or less degree.

In the accompanying drawing which illustrates one of the embodiments ofmy invention, Figure 1 is a portion of a self-pio pelled vehicle showingthe engine radiatorv in elevation and the body of the vehicle inoutline, yand Fig. Q is a longitudinal section taken on line 1 2 ofliig. l'.

5 indicates the floor of the vehicle, 6 the side-'walls thereof, and '7.the roof. l have omitted the trucks from the vehicle because they areunnecessary to an understanding of the invention.

Located within the vehicle is an internal combustion engine 8 of anysuitable construction. As shown, the engine comprises eight cylindersarranged in sets of four each,

the cylinders being inclined to eacli other. The pistons in thecylindersare connected by suitable cranks to the main shaft 9; the latter may bedirectly connected to the car axles through gearing or indirectlythrough liprefer the lattei'arrangenient. rlllhe engine cylinders andvalveV casings are provided with cooling jackets 11 and cooling water isconveyed thereto by the conduits 12 and conveyed therefrom by conduits13 to the radiator. 'ln these conduits are flexible connections 14. Theradiator which is mounted on the roof of the vehicle and correspondsapproximately to the curvature thereof,v is made in two principal partsor sections. Each of these parts comprises headers 15 and 16 which areconnected to an inner set of tubes 17 and an outer set 18, Each of thesetubes is provided with radiating fins to increase the effective coolingsurface.

Mounted on top of the upper headers 1G is an overflow tank or receptacle19 which is connected'to each ofthe headers 1G by rela'- tivelyrestricted openings or orifices and when the conditions become normal.

21. These are located near the ends of the overflow tank so that as thewater tends to surge back and forth in the header under conditions ofstarting and stopping, it can enter the tank. These openings arerelatively restricted so ithat a certain amount of opposition will beoffered to the movements of the water. lThe tank is similarly connectedto the right-hand lie-ader so that it will receive water from both partsor sections of the radiator and return it to tl'eiln e cubical contentsof the overflow tank should be at least equal to those of allengine'jackets, if the best effects are to be obtained. That is to say,if steam is generated in the jackets and blows the water vout of them,the overflow tank should have a capacity great enough to receive thiswater.

Each 'of the headers 16 is provided with a f filling and overflow device22 having a cap 23 to prevent the entrance of foreign matter. Betweenthe upper and lower sets lof tubes 17 and 18 is a ballier 24;comprisinga partition attached to the side and end walls of the headerand containing a plurality of orifices 25. This balller serves todistribute the cooling water to the various tubes in each set and alsoassists in retarding the surging action of the water in the operation ofthe vehicle. 4 1 l I have shown the overflow tank mounted on top of theradiator headers because' thisis a very effective location, but itis notnecessarily so positioned. The tank' may be of any suitable shape andcan 'be made larger than above specified if-desired. .It is important,however, from a constructive and operative" standpoint to make it assmall as possible consistent with satisfactory operation. This isparticularly true where head room in the car-barns, of the bridges,etc., is

' limited. l

In accordance with the provisions of the patent statutes, I havedescribed theprinciple of operation of my invention, together with theapparatus which I now consider to represent the best embodiment thereof;but. AI desireto have itunderstood that the apparatusv shown is onlyillustrative, and that the invention can be carried out'byother means. y

What Iclaim as new and desire to secure by Letters Patent of the UnitedStates, is

1. In a vehicle, the combination of an internal combustion enginelocated within the vehicle and having a Huid cooling system, a radiatormade in two principalparts or sections located at opposite `sides of thevehicle,

receiving. and delivery `connections between each of said sections andsaid cooling system, so that the fluid from the latter may pass throughthem andv give up heat, and, in I f addition, an overflow-receptaclecommon to both sections of the radiator andlocated with the radiator.

megeve above them which is adapted to receive fluid temporarily forcedupward from the radiator by movement of the vehicle or by steamgeneration in the fluid cooling system of the engine.

2. In a. vehicle,- the combination of an internal combustion enginehaving its cylindersV arranged in sets and also having a cooling systemfor each set located within the vehicle, a radiator for each systemoutside the vehicle, receiving and delivery connections between eachradiator and the corresponding cooling system, and, in addition,anoverlow tank on the roof of the vehicle that is connected toboth ofthem and is ar'- ranged to receive fluid expelled therefrom as tion, anoverflow tank located above the radiator and connected to one of itsheaders through a relatively restricted opening.

4l. In a vehicle, the combination of an internal combustion enginecarried thereby and having-a fluid coolingsystem, a radiator comprisingheaders and connecting conduits arranged in sets located outside of thevehicle, there being a baliler in one of the headers between the sets todistribute the fluid to the conduits. and reduce the effects A ofsurging, receiving and delivery connections between said radiator andsaid cooling system, and, in addition, 'an overflow tank located above'the radiator and connected thereto at separate points. i

5. In a vehicle, the combination of an internal i combustion enginecarried thereby and having 'a fluid cooling system, a radiatorlocated onthe roof of the vehicle and comprising two sections each with aplurality of headers connectedby radiating conduits, reeeiving anddelivery connections between said radiator and said cooling system, and,

i addition, an' overflow tank locatedabove y two of said headers and inopen communication with both. Y

j 6. In a self-propelled vehicle, the combination of an internalcombustion engine located within the vehicle and provided with coolingjackets, a radiator located on-the roof of' the vehicle, conduitsconnecting the engine jackets and the radiator, and in addition anoverflow tank alsolocated on the roof .of the vehicle which is incommunication 7 In a vehicle, the combination of an internalcombustionengine mounted thereon and having `cooling jackets, -a radiator mountedoutside said vehicle, receiving and least approximately equal to thoseof the endeliveryconnections between the .cooling gine jackets. E0jackets and said radiator, and, in addition,' In lWitness whereof, Ihave hereunto set a receptacle located above said radiator and my handthis 23*day of May, 1912.

connected directly therewith at a point HENRY W. STOCK. above the normallevel of the .cooling Huid, Witnesses: i said receptacle being normally`empty and of DORMAN WEAVER, such size that its cubical contents are atGALE GIBSON.

